Overfishing In South Africa

Sharks in South Africa South Africa is known today to have problems in their waters. Not only are they just found in their waters, but they are also found in many other familiar waters of other countries. The topic I will be discussing about is the overfishing problem in South Africa. Not just ordinary overfishing, but overfishing for sharks in particular. I decided to go with this topic because sharks are the top of the food chain and often get misunderstood. From my knowledge, I am also aware that

trillion pounds of waste of just food alone (Garfield, Gould, & Insider, 2016). The more developed countries, like the United States, generate ten times as much waste as underdeveloped countries like Saharan Africa. Land degradation, declining soil fertility, unsustainable water use, overfishing and marine environment degradation are all lessening the earth’s ability to supply food (Nino & Intern, 2016). Because of its adverse impact on agronomic productivity, the environment, and its effect on food

Ocean overfishing is the process of removing wildlife from the ocean (or any other water sources) at unsustainable rates that lower their replication rates. Overfishing began around the mid-20th century. At this time, there were many attempts to increase the pricings and variety of protein-rich foods; this led to the government trying to increase the fish capacity. While the fishing operations advanced, the fish populations deteriorated. These operations ended up turning into profit-hoggers and started

is the second largest ocean in the world. It borders North and South America, Europe, and Africa ("Atlantic Ocean"). The Mid-Atlantic Ridge is a mostly underwater mountain in the Atlantic Ocean. The ocean is home for many unique plants and animals. However, humans are destroying the ocean in many different ways. The Atlantic Ocean is very important to the habitat on Earth. Its

climate is from -40 degrees fahrenheit to more than 100 degrees. The average temperature is 39 degrees fahrenheit, but it is much warmer near the Equator where the sun rays can hit the ocean and make it warmer. The coldest is in the North and the South Poles where the water is close to freezing, also known as glaciers, because sunlight isn’t directly hitting it with it’s sun rays. The ocean can also be harsh, because of ocean currents. The ocean currents create big hurricanes and typhoons. Although

Endangered Species Table Animal name Bigeye tuna (thunnus obesus) Mistbelt chirping frog (anhydrophryne ngongoniensis) Atlas dwarf viper (vipera monticola) Kirtland’s warbler (dendroica kirtlandii) Bengal tiger (panthera tigris tigris) Picture Website Reference for Picture http://www.fpir.noaa.gov/SFD/SFD_regs_6.html Wildscreen Arkive http://www.inaturalist.org/taxa/Vipera_monticola Audubon Tigers World Physical Traits They grow as long as 200+ cm., They can be as heavy as 180+ kg,. They

Puffer fish; one of the few sea creatures that can puff up into a ball to protect itself from predators. The puffer fish has a sluggish swimming style that makes them a target for predators. To try to protect themselves, they use their elastic stomachs and their ability to hastily ingest large amounts of water and when necessary, air to turn them into a ball that is normally several times their size. Some species of the tetraodontidae have spines on their skin to assist them become less pleasing

not industrial monster sized boats, if we are to have healthy oceans. 3. Super trawlers will catch more than just fish. Dolphins, fur seals, turtles and sea birds are all at risk. 4. Monster sized boats like the super trawler were banned from West Africa after local fish populations plummeted. 5. Globally, small-scale fisheries employ about 90% of those involved in fisheries. Most of them use low impact gear and are a vital part of the need to move away from destructive fishing towards sustainable

What is genetic variation? Genetic variation refers to diversity in gene frequencies. Genetic variation can refer to differences between individuals or to differences between different populations. Mutation is the best source of genetic variation.Mutation is the changing of the structure of a gene, and when resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections

Sharks have survived 5 major extinctions, and only recently are the number of sharks is beginning to decline. This suggests that human exploitation is the main reason for the drastic loss of sharks and therefore, the overall effect on marine life, and indirectly the effect on human life via fisheries (fig1 and 2). In just under 50 years, slaughter of sharks has risen by 400% to Figure 1. Graph showing an overall increase in global shark catch. approximately 800,000 tonnes per year[1], so now, around